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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 39 |
| 5 | 51 |
| 6 | 52 |
| 7 | 71 |
| 8 | 6920 |
| 9 | 613377 |
| 10 | 613381 |
| 11 | 613405 |
| 12 | 613433 |
| 13 | 613437 |
| 14 | 613449 |
| 15 | 613455 |
| 16 | 613536 |
| 17 | 613537 |
| 18 | 613548 |
| 19 | 613557 |
| 20 | 613569 |
| 21 | 613581 |
| 22 | 613583 |
| 23 | 613587 |
| 24 | 613588 |
| 25 | 613608 |
| 26 | 613613 |
| 27 | 58155550 |
| 28 | 58155570 |
| 29 | 6384425447 |
| 30 | 6384425465 |
| 31 | 6384425505 |
| 32 | 6384425531 |
| 33 | 6384425567 |
[1,2,4,39,51,52,71,6920,613377,613381,613405, 613433,613437,613449,613455,613536,613537,613548, 613557,613569,613581,613583,613587,613588,613608, 613613,58155550,58155570,6384425447,6384425465, 6384425505,6384425531,6384425567] |